The Australian fired 34 aces in a 5-7 7-5 7-6 (7/3) 6-3 victory over the seventh seed, but there is far more to the 20-year-old's game than a big serve.

On a roasting hot Court Two, Kyrgios dropped the first set after committing three double faults in the final game, but his game reached a new level thereafter as the man who beat Rafael Nadal at the All England Club last year powered through to the last 16.

He finished off the match with a thumping forehand winner and looks to have the tools of a future Wimbledon champion.

"I don't fear anyone," Kyrgios said. "I thought I returned really well today. I knew it was going to be a tough match and I toughed it out and got it done in four sets."

French shot-maker Richard Gasquet lies in wait for Kyrgios next after his three-set win over Grigor Dimitrov on Centre Court.

Kyrgios and Gasquet met at the second-round stage last year, with the man from Canberra winning over five sets.

French Open champion Stan Wawrinka reached the fourth round with a straight-sets victory over Fernando Verdasco.

Next up for the fourth seed will be David Goffin, the Belgian who saw off Liam Broady and followed up yesterday by beating Marcos Baghdatis.

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